5BK7A

5BK7A, Filament / Heater: 4.7V at 600mA, Pin Count / Base: 9-Pin Miniature (Noval / B9A), Description: Medium-high-mu twin triode with controlled warm-up time, specialized for low-noise cascode RF amplifier circuitry in series string VHF TV tuners. Equivalent: RCA 5BK7A / Sylvania 5BK7A / GE 5BK7A / Raytheon 5BK7A TUBE IN BOX - TUBE WILL BE TESTED BEFORE SHIPMENT